The Nature Reserve Wietrznia with the Geoeducation Centre is the largest reserve in the city Kielce (almost 18 ha) and is named after Zbigniew Rubinowski. The rocks found here began to be exploited in the 19th century. Here we can “read the history of the Earth” mainly from the Devonian period, whose rock wall is the longest geological cross-section in Poland (over 800 m long). Wandering along the educational path, we can learn from information boards, m.in. about the phenomena of: microtectonics, vein mineralization, karst and visit the modern Geoeducation Center, which is a place of permanent and temporary exhibitions on geological topics, as well as a place to conduct thematic workshops.